Preparatory and after treatment in operative cases . hanismof the apparatus; a is the bolt. The setscrew ~b, placed into the flanged end, pre-vents the bolt from moving and workingout; c is the check cord screw; d thecheck cord; g the spring piston; h thespiral spring; i the cylinder. The rela-tions and functions of these parts can beunderstood by an examination of and 412. The action of the spring holds the legat flexion when the wearer is seated, andurges the leg forward when range of articulation can be regu-lated by means of a pad placed betweenthe lower end of the che
Preparatory and after treatment in operative cases . hanismof the apparatus; a is the bolt. The setscrew ~b, placed into the flanged end, pre-vents the bolt from moving and workingout; c is the check cord screw; d thecheck cord; g the spring piston; h thespiral spring; i the cylinder. The rela-tions and functions of these parts can beunderstood by an examination of and 412. The action of the spring holds the legat flexion when the wearer is seated, andurges the leg forward when range of articulation can be regu-lated by means of a pad placed betweenthe lower end of the check cord and thebridge under which it passes. Thesepads can be reached through the openingin the calf of the leg. The upper loops of the check cords rest intheir respective channelsand through them a steelscrew is passed and center of motion,being placed below thenatural knee, causes adisparity in length in thetwo thighs. This is aminor considerationwhen balanced againstthe utility of the mech-anism. Disarticulated kneestumps are fitted with. Fig. 412.—Appliance for Knee-bearixg Stump,Showing Degree of Flexion Obtaixable. LEG AMPUTATIONS 625 practically the same appliances described under knee-bearingstumps. It may be said that disarticulations at the knee jointbear pressure very well and present a condition of affairs quitefavorable to prothesis. THIGH STUMPS Thigh stumps are fitted with much the same appliances as areapplied to knee-bearing stumps. The application of an artificial limb should not be post-poned beyond what is necessary to obtain a tolerant stump. Persons who carry an idle thigh stump for a considerable period of time usually have a certain degree of contracture of the flexor muscles (the psoas, etc.) which inclines the stump forward, and this must be overcome before a comfortable appliance can be advantageously worn. As a rule thigh stumps will not bear pressure on their ends. Fig. 413 shows the usual form of artificial limb applied to thigh stumps; F
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
